What's new in Wise Care 365 Free 2.21.173:· Fixed an interface refresh bug in Disk Defrag.· Improved calculation of system service boot time.· Improved display of last cleanup time in different date and time formats.· Added a reminder of the necessary cleanups for the user.· Added filter feature for the partition where Mac OS is installed.· Added an excellent skin for Valentine's day.· Improved some existed language packs.